CN108173571B - Phase transmission method, phase transmission device, storage medium and processor - Google Patents
Phase transmission method, phase transmission device, storage medium and processor Download PDFInfo
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- CN108173571B CN108173571B CN201711480844.0A CN201711480844A CN108173571B CN 108173571 B CN108173571 B CN 108173571B CN 201711480844 A CN201711480844 A CN 201711480844A CN 108173571 B CN108173571 B CN 108173571B
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- H—ELECTRICITY
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- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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Abstract
The invention discloses a phase transmission method, a phase transmission device, a storage medium and a processor. Wherein, the method comprises the following steps: acquiring first time information of a preset signal, wherein the first time information is a time period between the sending time of the preset signal and the zero-crossing time of a first phase line; acquiring second time information of the predetermined signal, wherein the second time information is a time period between the receiving time of the predetermined signal and the zero-crossing time of a second phase line, and the second phase line is any one of a plurality of predetermined phase lines with known phase information; judging whether the second phase line corresponds to the first phase line or not according to the first time information and the second time information; and determining whether the phase information of the second phase line is the phase information of the first phase line according to the judgment result. The invention solves the technical problem that the communication mode of the existing phase information is not flexible.
Description
Technical Field
The present invention relates to the field of power, and in particular, to a phase transmission method, apparatus, storage medium, and processor.
Background
The power grid environment needs to know the phases of different power lines, follow-up application work and research are carried out according to phase information, algorithms for power line phase identification are many, most of the algorithms are directed at a power line carrier method, based on zero-crossing information of the power lines, a transmitter sends carrier signals at zero-crossing time, and local phases are calculated at a receiving end through the time difference between the starting time of the zero-crossing time and the local zero-crossing signals.
The zero-crossing transmission technology utilizes the characteristics of maximum and stable impedance and small interference of a power grid before and after voltage zero crossing to send carrier signals before and after the voltage zero crossing.
The receiver end judges the phase according to the carrier information sent by the transmitter through zero crossing and the zero crossing signal of the receiver.
However, this method is single in communication mode, and cannot complete a communication task in a state where the power line environment is severe, so that phase identification fails. The requirement for communication time is high, and communication must be carried out at zero-crossing time, so that communication is not flexible, and more complex tasks cannot be completed on the basis of communication.
In view of the above-mentioned problem that the communication method of the conventional phase information is not flexible, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the invention provides a phase transmission method, a phase transmission device, a storage medium and a processor, which at least solve the technical problem that the existing communication mode of phase information is not flexible.
According to an aspect of an embodiment of the present invention, there is provided a phase transmission method including: acquiring first time information of a preset signal, wherein the first time information is a time period between the sending time of the preset signal and the zero-crossing time of a first phase line; acquiring second time information of the predetermined signal, wherein the second time information is a time period between the receiving time of the predetermined signal and the zero-crossing time of a second phase line, and the second phase line is any one of a plurality of predetermined phase lines with known phase information; judging whether the second phase line corresponds to the first phase line or not according to the first time information and the second time information; and determining whether the phase information of the second phase line is the phase information of the first phase line according to the judgment result.
Further, determining whether the second phase line corresponds to the first phase line according to the first time information and the second time information includes: determining a time difference according to the first time information and the second time information; and judging whether the second phase line corresponds to the first phase line or not according to the time difference.
Further, determining whether the second phase line corresponds to the first phase line according to the time difference includes: determining a phase difference according to the time difference; and judging whether the second phase line corresponds to the first phase line or not according to the phase difference.
Further, determining whether the second phase line corresponds to the first phase line according to the first time information and the second time information includes: acquiring identification information of the first phase lines, wherein the identification information is a unique identification of each of the first phase lines, a predetermined relationship exists between two adjacent first phase lines, and the predetermined signal carries the identification information of the first phase lines; determining the identification information corresponding to the second phase according to the predetermined relationship, the first time information and the second time information; and determining the first phase line corresponding to the second phase line from a plurality of first phase lines according to the identification information.
Further, determining the identification information corresponding to the second phase line according to the predetermined relationship, the first time information, and the second time information includes: determining preset difference value information according to the first time information and the second time information; determining a preset set corresponding to the preset difference information, wherein the preset set is a set which is preset according to the preset relation and corresponds to the identification information; and determining the identification information corresponding to the second phase line according to the preset set.
According to another aspect of the embodiments of the present invention, there is also provided a phase transmission method, including: acquiring first time information of a preset signal, wherein the first time information is a time period between the sending time of the preset signal and the zero-crossing time of a first phase line; transmitting a predetermined signal and first time information of the predetermined signal.
Further, the transmitting the predetermined signal includes: and sending identification information of the first phase line, wherein the predetermined signal carries the identification information of the first phase line, and the identification information is a unique identification of each of the first phase lines in the plurality of first phase lines.
According to another aspect of the embodiments of the present invention, there is also provided a phase transmission apparatus, including: the device comprises a first acquisition unit, a second acquisition unit and a control unit, wherein the first acquisition unit is used for acquiring first time information of a preset signal, and the first time information is a time period between the sending time of the preset signal and the zero-crossing time of a first phase line; a second obtaining unit, configured to obtain second time information of the predetermined signal, where the second time information is a time period between a receiving time of the predetermined signal and a zero-crossing time of a second phase line, and the second phase line is any one of a plurality of predetermined phase lines with known phase information; the judging unit is used for judging whether the second phase line corresponds to the first phase line or not according to the first time information and the second time information; and the determining unit is used for determining whether the phase information of the second phase line is the phase information of the first phase line according to the judgment result.
According to another aspect of the embodiments of the present invention, there is also provided a phase transmission apparatus, including: the third acquisition unit is used for acquiring first time information of a preset signal, wherein the first time information is a time period between the sending time of the preset signal and the zero-crossing time of a first phase line; a transmitting unit for transmitting a predetermined signal and first time information of the predetermined signal.
According to another aspect of the embodiments of the present invention, there is also provided a phase transmission system, including: the system comprises a sending end, a receiving end and a first phase line, wherein the sending end is used for sending a preset signal and first time information of the preset signal, and the first time information is a time period between the sending time of the preset signal and the zero-crossing time of a first phase line; the receiving terminal is configured to obtain the first time information and second time information of receiving the predetermined signal, where the second time information is a time period between a receiving time of the predetermined signal and a zero crossing time of a second phase line, and the second phase line is any one of a plurality of predetermined phase lines with known phase information; and the processor is used for judging whether the second phase line corresponds to the first phase line according to the first time information and the second time information and determining whether the phase information of the second phase line is the phase information of the preset phase line according to the judgment result.
According to another aspect of the present invention, an embodiment of the present invention further provides a storage medium, where the storage medium includes a stored program, and when the program runs, the apparatus on which the storage medium is located is controlled to execute the phase transmission method described above.
According to another aspect of the present invention, an embodiment of the present invention further provides a processor, where the processor is configured to execute a program, where the program executes the phase transmission method described above.
In the embodiment of the invention, the preset signal and the first time information of the time period between the sending time and the zero-crossing time of the first phase line of the preset signal are obtained, any phase line is selected from a plurality of preset phase lines as a second phase line, and second time information of a time period of the predetermined signal between the reception time and a second phase line zero-crossing time is acquired, then determining whether the first phase line and the second phase line are corresponding to each other according to the first time information and the second time information, and determines whether the phase information of the second phase line is the phase information of the first phase line according to the judgment result, thereby achieving the purpose of acquiring the phase information of the first phase line, the preset signal is not limited to be sent at the zero-crossing time of the first phase line, so that the technical effect of flexibly transmitting the phase information is achieved, and the technical problem that the existing communication mode of the phase information is not flexible is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a first flowchart of a phase transmission method according to an embodiment of the present invention;
fig. 2 is a second schematic diagram of a phase transmission method according to an embodiment of the present invention;
FIG. 3 is a first diagram illustrating phase information according to an embodiment of the present invention;
FIG. 4 is a second diagram illustrating phase information according to an embodiment of the present invention;
FIG. 5 is a third diagram illustrating phase information according to an embodiment of the present invention;
FIG. 6 is a fourth schematic diagram of phase information according to an embodiment of the present invention;
FIG. 7 is a fifth exemplary phase information according to an embodiment of the invention;
FIG. 8 is a sixth schematic representation of a phase information according to an embodiment of the present invention;
fig. 9 is a seventh schematic diagram of phase information according to an embodiment of the invention;
fig. 10 is an illustration of an eighth phase information according to an embodiment of the invention;
FIG. 11 is a diagram illustrating a phase information according to an embodiment of the present invention;
fig. 12 is a diagram ten illustrating a phase information according to an embodiment of the present invention;
FIG. 13 is an eleventh schematic diagram of a phase information according to an embodiment of the present invention;
fig. 14 is a first schematic diagram of a phase transmission apparatus according to an embodiment of the present invention;
fig. 15 is a second schematic diagram of a phase transmission apparatus according to an embodiment of the present invention;
fig. 16 is a schematic diagram of a phase transmission system according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In accordance with an embodiment of the present invention, there is provided a phase transfer method embodiment, it should be noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than here.
Fig. 1 is a first flowchart of a phase transmission method according to an embodiment of the present invention, as shown in fig. 1, the method includes the following steps:
step S102, acquiring first time information of a preset signal, wherein the first time information is a time period between the sending time of the preset signal and the zero-crossing time of a first phase line;
step S104, obtaining second time information of the predetermined signal, wherein the second time information is a time period between the receiving time of the predetermined signal and the zero-crossing time of a second phase line, and the second phase line is any one of a plurality of predetermined phase lines with known phase information;
step S106, judging whether the second phase line corresponds to the first phase line or not according to the first time information and the second time information;
and step S108, determining whether the phase information of the second phase line is the phase information of the first phase line according to the judgment result.
Through the steps, the preset signal and the first time information of the time period between the sending time and the zero-crossing time of the first phase line of the preset signal are obtained, any phase line is selected from the plurality of preset phase lines as a second phase line, and second time information of a time period of the predetermined signal between the reception time and a second phase line zero-crossing time is acquired, then determining whether the first phase line and the second phase line are corresponding to each other according to the first time information and the second time information, and determines whether the phase information of the second phase line is the phase information of the first phase line according to the judgment result, thereby achieving the purpose of acquiring the phase information of the first phase line, the preset signal is not limited to be sent at the zero-crossing time of the first phase line, so that the technical effect of flexibly transmitting the phase information is achieved, and the technical problem that the existing communication mode of the phase information is not flexible is solved.
Optionally, the first phase line and the second phase line are used for transmitting alternating current, and since the voltage and the current magnitude and direction of the alternating current are constantly changed, the current at a time is zero in the changing process, and the time is the zero-crossing time.
Alternatively, the first phase line and the second phase line may be used to transmit 50HZ alternating current.
Alternatively, the first phase line may be a phase line corresponding to the second phase line, and the first phase line and the second phase line may transmit the same alternating current. For example, the first phase line may be one phase line of a three-phase circuit, and the second phase line may be one phase line of the same three-phase circuit as the first phase line.
Further, the first phase line may be a known phase line, for example, in a three-phase circuit, the first phase line may be an a phase line in the three-phase circuit, and the second phase line is a position phase line in the three-phase circuit, that is, the second phase line is an arbitrarily selected phase line in the three-phase circuit, and may be the a phase line, the B phase line, or the C phase line in the three-phase circuit.
Optionally, the second phase line is a phase line of known phase information. For example, in a three-phase circuit, only the phase information of the second phase line is known, but it is not possible to determine whether the second phase line belongs to the a-phase line, the B-phase line, or the C-phase line.
Optionally, under the condition that it is determined that the second phase line corresponds to the first phase line according to the first time information and the second time information, it may be determined that the phase information of the second phase line is the phase information of the first phase line.
For example, in a three-phase circuit, in a case where the first phase line is the a phase line, it may be determined whether the second phase line is also the a phase line according to the first time information and the second time information.
Optionally, in a case that the phase information of the first phase line cannot be determined according to the first time information and the second time information, a new phase line is reselected from the plurality of predetermined phase lines as the second phase line until the first phase line corresponds to the second phase line.
In addition, in the alternating current, the phase is a physical quantity reflecting the state of the alternating current at any time, for example, a sinusoidal alternating current, and the formula is I — Isin2 pi ft, I is the instantaneous value of the alternating current, I is the maximum value of the alternating current, f is the frequency of the alternating current, t is time, 2 pi ft is the phase or the phase in a trigonometric function, and further, the phase information can be expressed by the trigonometric function.
As an alternative embodiment, the determining whether the second phase line corresponds to the first phase line according to the first time information and the second time information includes: determining a time difference according to the first time information and the second time information; and judging whether the second phase line corresponds to the first phase line or not according to the time difference.
By adopting the above embodiment of the present invention, in the case that whether the second phase line corresponds to the first phase line is determined according to the first time information and the second time information, the time difference between the first time information and the second time information may be established, and then whether the second phase line corresponds to the first phase line is determined according to the time difference.
For example, in the case that the time difference between the first time information and the second time information is 0, the second phase line may be selected to correspond to the first phase line.
As an alternative embodiment, the determining whether the second phase line corresponds to the first phase line according to the time difference includes: determining a phase difference according to the time difference; and judging whether the second phase line corresponds to the first phase line or not according to the phase difference.
By adopting the above embodiment of the present invention, according to the time difference between the first time information and the second time information, the phase difference corresponding to the time difference can be determined, and further, whether the second phase line corresponds to the first phase line or not can be determined according to the phase difference.
For example, in the case where the formula of the alternating current is i ═ Isin2 pi ft, the phase difference can be determined from the time difference.
Alternatively, in the case where the phase difference is 0, it may be determined that the second phase line corresponds to the first phase line.
As an alternative embodiment, the determining whether the second phase line corresponds to the first phase line according to the first time information and the second time information includes: acquiring identification information of first phase lines, wherein the identification information is a unique identification of each of the plurality of first phase lines, a predetermined relationship exists between two adjacent first phase lines, and a predetermined signal carries the identification information of the first phase lines; determining identification information corresponding to the second phase according to the preset relation, the first time information and the second time information; and determining a first phase line corresponding to the second phase line from the plurality of first phase lines according to the identification information.
By adopting the above embodiment of the present invention, a predetermined relationship exists between two adjacent first phase lines in the plurality of first phase lines, and when determining that the first phase line corresponding to the second phase line corresponds to the second phase line according to the first time information and the second time information, the first phase line corresponding to the second phase line in the plurality of first phase lines may be determined according to the predetermined relationship, and in the process of determining the first phase line corresponding to the second phase line, the identification information corresponding to the second phase line is determined according to the identification information corresponding to each first phase line in the plurality of first phase lines to determine the corresponding first phase line.
Optionally, the representation information of the first phase line may be phase information where the zero-crossing time of the first phase line is located, and may also be a name of the first phase line.
For example, in the plurality of first phase lines, it may be determined that a predetermined relationship exists between two adjacent first phase lines according to a relationship between zero-crossing times of the two adjacent phase lines.
As an alternative embodiment, determining the identification information corresponding to the second phase line according to the predetermined relationship, the first time information and the second time information includes: determining predetermined difference information according to the first time information and the second time information; determining a preset set corresponding to the preset difference information, wherein the preset set is a set which is preset according to a preset relation and corresponds to the identification information; and determining identification information corresponding to the second phase line according to the preset set.
By adopting the above embodiment of the present invention, the predetermined difference information may be determined according to the first time information and the second time information, and according to the preset corresponding relationship between the predetermined set and the identification information, the identification information corresponding to the predetermined difference information may be determined by determining the predetermined set corresponding to the predetermined difference information, and further, the first phase line corresponding to the second phase line may be determined according to the identification information.
For example, the predetermined set includes a first set, a second set, and a third set, and the identification information may be names of a plurality of first phases, such as "a phase", "B phase", and "C phase". The first set is preset to correspond to the "a phase line", the second set is preset to correspond to the "B phase line", and the third set is preset to correspond to the "B phase line", so that the second phase line can be determined to correspond to the "a phase line", that is, the second phase line corresponds to the "a phase line" in the first phase line, under the condition that the preset difference value belongs to the first set.
Alternatively, the predetermined difference information includes the above-described time difference and phase difference.
Fig. 2 is a second schematic diagram of a phase transmission method according to an embodiment of the present invention, as shown in fig. 2, the method includes the following steps:
step S202, acquiring first time information of a preset signal, wherein the first time information is a time period between the sending time of the preset signal and the zero-crossing time of a first phase line;
step S204, the predetermined signal and the first time information of the predetermined signal are sent.
Through the steps, the first time signal of the predetermined signal at the transmission time and the zero-crossing time of the first phase line can be determined, and the predetermined signal and the first time information of the predetermined signal are transmitted, so that the phase information of the first phase line can be acquired according to the transmitted predetermined signal and the first time information of the predetermined signal.
As an alternative embodiment, the transmitting the predetermined signal includes: and sending identification information of the first phase lines, wherein the predetermined signal carries the identification information of the first phase lines, and the identification information is a unique identification of each of the plurality of first phase lines.
By adopting the above embodiment of the present invention, in the process of sending the predetermined signal, the identification information of the first phase line may be carried in the predetermined signal, so that the receiver of the predetermined signal can determine one first phase line corresponding to the predetermined signal from the plurality of first phase lines according to the identification information.
According to still another embodiment of the present invention, there is provided a phase transmission method including: acquiring first time information of a preset signal transmitted by a transmitting end, wherein the first time information is a time period between the transmitting time of the preset signal and the zero-crossing time of a first phase line; acquiring second time information of a preset signal received by a receiving terminal, wherein the second time information is a time period between the receiving time of the preset signal and the zero crossing time of a second phase line, and the second phase line is any one of a plurality of preset phase lines with known phase information; judging whether the second phase line corresponds to the first phase line or not according to the first time information and the second time information; and determining whether the phase information of the second phase line is the phase information of the preset phase line according to the judgment result.
The invention also provides a preferred embodiment, which provides a phase identification method based on multiple communication modes in parallel.
The phase identification method based on multiple communication modes can adopt different communication modes to carry out parallel communication, thereby improving the redundancy of the system and the reliability and stability of the system.
The phase identification method based on multiple communication modes provided by the invention adopts wireless communication and carrier communication modes, but the method is not limited to the two communication modes and is a phase identification algorithm not limited to the communication modes.
The phase identification method based on multiple communication modes provided by the invention does not need a transmitter to transmit signals at the power line zero crossing point of local known phase information, can transmit information at any time, and only needs to contain two parts of contents in the transmitted information: 1) locally knowing phase information of a zero-crossing moment of the power line; 2) and recording the time difference between the sending time and the zero-crossing time of the local power line.
Optionally, for a receiver needing to determine phase information, the phase information of the local power line can be obtained through a software algorithm according to the content of the received information and the time of the zero-crossing time of the local power line needing to be determined.
The following is a phase identification method based on two communication modes of wireless and carrier wave in parallel, the actual operation steps are not completed according to the following steps, and a more flexible phase identification method can be designed only by knowing the core of the method, the invention considers the state that a receiver can be triggered by different pulse edges from a transmitter, and the specific scheme is as follows:
1. the transmitter records the current known phase zero crossing information, such as the a phase, and starts a timer.
2. The transmitter simultaneously transmits wireless and power line carrier information, and the information content comprises: 1) the local phase is A phase; 2) the timer data at the transmission time is K1.
3. For the receiver, a timer is started at the zero-crossing time of the current unknown phase information, and the timer is cleared when the zero-crossing information is carried out at the next time.
4. When the receiver receives wireless or power line carrier information, the current timer value is recorded as K2, and the overall system error is set as X, and the unit is ms.
Fig. 3 is a schematic diagram of phase information according to an embodiment of the present invention, as shown in fig. 3, when a first phase line includes a phase a, a phase B, and a phase C, and a time difference between K2 and K1 meets a predetermined set of time determination conditions, that is, the time difference meets a predetermined set [ -2X, +2X ] < u-10-2X, -10+2X ] < u +10-2X, +10+2X ], a local phase line of a receiver may be determined to correspond to the phase a line, and phase line information of the phase a line may be determined according to the phase line information of the local phase line.
Optionally, in a case that the phase difference determined according to the time difference between K2 and K1 meets a predetermined set of phase determination conditions, that is, the phase difference meets a predetermined set of 0 u-pi u + pi, it may be determined that the local phase line of the receiver corresponds to the a phase line, and then phase line information of the a phase line may be determined according to the phase line information of the local phase line.
Fig. 4 is a schematic diagram of phase information according to an embodiment of the present invention, as shown in fig. 4, where the first phase line includes a phase a, a phase B, and a phase C, and when a time difference between K2 and K1 meets a predetermined set of time determination conditions, that is, the time difference meets a predetermined set [ -2X, +2X ] < u-10-2X, -10+2X ] < u +10-2X, +10+2X ], it may be determined that the local phase line of the receiver corresponds to the phase a, and further, phase line information of the phase a may be determined according to the phase line information of the local phase line.
Optionally, in a case that the phase difference determined according to the time difference between K2 and K1 meets a predetermined set of phase determination conditions, that is, the phase difference meets a predetermined set of 0 u-pi u + pi, it may be determined that the local phase line of the receiver corresponds to the a phase line, and then phase line information of the a phase line may be determined according to the phase line information of the local phase line.
Fig. 5 is a schematic diagram of phase information according to an embodiment of the present invention, as shown in fig. 5, where the first phase line includes a phase a, a phase B, and a phase C, and when a time difference between K2 and K1 meets a predetermined set of time determination conditions, that is, the time difference meets a predetermined set [ -2X, +2X ] < u-10-2X, -10+2X ] < u +10-2X, +10+2X ], it may be determined that the local phase line of the receiver corresponds to the phase a, and further, phase line information of the phase a may be determined according to the phase line information of the local phase line.
Optionally, in a case that the phase difference determined according to the time difference between K2 and K1 meets a predetermined set of phase determination conditions, that is, the phase difference meets a predetermined set of 0 u-pi u + pi, it may be determined that the local phase line of the receiver corresponds to the a phase line, and then phase line information of the a phase line may be determined according to the phase line information of the local phase line.
Fig. 6 is a fourth schematic diagram of phase information according to an embodiment of the present invention, as shown in fig. 6, when a first phase line includes a phase a, a phase B, and a phase C, and a time difference between K2 and K1 meets a predetermined set of time determination conditions, that is, the time difference meets a predetermined set [ -40/3-2X, -40/3+2X ] "u [ -10/3-2X, -10/3+2X ]" u [ +20/3-2X, +20/3+2X ] "u [ +50/3-2X, +50/3+2X ], a local phase line of the receiver may be determined to correspond to the phase B line, and phase line information of the phase B line may be determined according to the phase line information of the local phase line.
Optionally, in a case that the phase difference determined according to the time difference between K2 and K1 meets a predetermined set of phase determination conditions, that is, the phase difference meets a predetermined set of-4 pi/3 u-pi/3 u +2 pi/3 u +5 pi/3, it may be determined that the local phase line of the receiver corresponds to the B phase line, and then phase line information of the B phase line may be determined according to the phase line information of the local phase line.
Fig. 7 is a schematic diagram of phase information according to an embodiment of the present invention, as shown in fig. 7, when a first phase line includes an a phase, a B phase, and a C phase, and a time difference between K2 and K1 meets a predetermined set of time determination conditions, that is, the time difference meets a predetermined set [ -40/3-2X, -40/3+2X ] "u [ -10/3-2X, -10/3+2X ]" u [ +20/3-2X, +20/3+2X ] "u [ +50/3-2X, +50/3+2X ], a local phase line of the receiver may be determined to correspond to the B phase line, and phase line information of the B phase line may be determined according to the phase line information of the local phase line.
Optionally, in a case that the phase difference determined according to the time difference between K2 and K1 meets a predetermined set of phase determination conditions, that is, the phase difference meets a predetermined set of-4 pi/3 u-pi/3 u +2 pi/3 u +5 pi/3, it may be determined that the local phase line of the receiver corresponds to the B phase line, and then phase line information of the B phase line may be determined according to the phase line information of the local phase line.
Fig. 8 is a schematic diagram six of phase information according to an embodiment of the present invention, as shown in fig. 8, when a first phase line includes a phase a, a phase B, and a phase C, and a time difference between K2 and K1 meets a predetermined set of time determination conditions, that is, the time difference meets a predetermined set [ -40/3-2X, -40/3+2X ] "u [ -10/3-2X, -10/3+2X ]" u [ +20/3-2X, +20/3+2X ] "u [ +50/3-2X, +50/3+2X ], a local phase line of the receiver may be determined to correspond to the phase B line, and phase line information of the phase B line may be determined according to the phase line information of the local phase line.
Optionally, in a case that the phase difference determined according to the time difference between K2 and K1 meets a predetermined set of phase determination conditions, that is, the phase difference meets a predetermined set of-4 pi/3 u-pi/3 u +2 pi/3 u +5 pi/3, it may be determined that the local phase line of the receiver corresponds to the B phase line, and then phase line information of the B phase line may be determined according to the phase line information of the local phase line.
Fig. 9 is a seventh schematic diagram illustrating phase information according to an embodiment of the present invention, as shown in fig. 9, when a first phase line includes a phase a, a phase B, and a phase C, and a time difference between K2 and K1 meets a predetermined set of time determination conditions, that is, the time difference meets a predetermined set [ -40/3-2X, -40/3+2X ] "u [ -10/3-2X, -10/3+2X ]" u [ +20/3-2X, +20/3+2X ] "u [ +50/3-2X, +50/3+2X ], a local phase line of the receiver may be determined to correspond to the phase B line, and phase line information of the phase B line may be determined according to the phase line information of the local phase line.
Optionally, in a case that the phase difference determined according to the time difference between K2 and K1 meets a predetermined set of phase determination conditions, that is, the phase difference meets a predetermined set of-4 pi/3 u-pi/3 u +2 pi/3 u +5 pi/3, it may be determined that the local phase line of the receiver corresponds to the B phase line, and then phase line information of the B phase line may be determined according to the phase line information of the local phase line.
Fig. 10 is a schematic diagram eight illustrating phase information according to an embodiment of the present invention, as shown in fig. 10, when a first phase line includes a phase a, a phase B, and a phase C, and a time difference between K2 and K1 meets a predetermined set of time determination conditions, that is, the time difference meets a predetermined set [ -50/3-2X, -50/3+2X ] "u [ -20/3-2X, -20/3+2X ]" u [ +10/3-2X, +10/3+2X ] "u [ +40/3-2X, +40/3+2X ], a local phase line of the receiver may be determined to correspond to the phase C phase line, and phase line information of the phase C phase line may be determined according to the phase line information of the local phase line.
Optionally, in a case that the phase difference determined according to the time difference between K2 and K1 meets a predetermined set of phase determination conditions, that is, the phase difference meets a predetermined set of-5 pi/3 u-2 pi/3 u +4 pi/3, it may be determined that the local phase line of the receiver corresponds to the C phase line, and further, phase line information of the C phase line may be determined according to the phase line information of the local phase line.
Fig. 11 is a schematic diagram illustrating phase information according to an embodiment of the present invention, as shown in fig. 11, when a first phase line includes an a phase, a B phase, and a C phase, and a time difference between K2 and K1 meets a predetermined set of time determination conditions, that is, the time difference meets a predetermined set [ -50/3-2X, -50/3+2X ] "u [ -20/3-2X, -20/3+2X ]" u [ +10/3-2X, +10/3+2X ] "u [ +40/3-2X, +40/3+2X ], a local phase line of the receiver may be determined to correspond to the C phase line, and phase line information of the C phase line may be determined according to the phase line information of the local phase line.
Optionally, in a case that the phase difference determined according to the time difference between K2 and K1 meets a predetermined set of phase determination conditions, that is, the phase difference meets a predetermined set of-5 pi/3 u-2 pi/3 u +4 pi/3, it may be determined that the local phase line of the receiver corresponds to the C phase line, and further, phase line information of the C phase line may be determined according to the phase line information of the local phase line.
Fig. 12 is a schematic diagram of phase information according to an embodiment of the present invention, as shown in fig. 12, when a first phase line includes a phase a, a phase B, and a phase C, and a time difference between K2 and K1 meets a predetermined set of time determination conditions, that is, the time difference meets a predetermined set [ -50/3-2X, -50/3+2X ] "u [ -20/3-2X, -20/3+2X ]" u [ +10/3-2X, +10/3+2X ] "u [ +40/3-2X, +40/3+2X ], a local phase line of the receiver may be determined to correspond to the phase C phase line, and phase line information of the phase C phase line may be determined according to the phase line information of the local phase line.
Optionally, in a case that the phase difference determined according to the time difference between K2 and K1 meets a predetermined set of phase determination conditions, that is, the phase difference meets a predetermined set of-5 pi/3 u-2 pi/3 u +4 pi/3, it may be determined that the local phase line of the receiver corresponds to the C phase line, and further, phase line information of the C phase line may be determined according to the phase line information of the local phase line.
Fig. 13 is an eleventh schematic diagram of phase information according to an embodiment of the present invention, as shown in fig. 13, when the first phase line includes a phase a, a phase B, and a phase C, and the time difference between K2 and K1 meets the predetermined set of time determination conditions, that is, the time difference meets the predetermined set [ -50/3-2X, -50/3+2X ] "u [ -20/3-2X, -20/3+2X ]" u [ +10/3-2X, +10/3+2X ] "u [ +40/3-2X, +40/3+2X ], it may be determined that the local phase line of the receiver corresponds to the phase C phase line, and further, phase line information of the phase C phase line may be determined according to the phase line information of the local phase line.
Optionally, in a case that the phase difference determined according to the time difference between K2 and K1 meets a predetermined set of phase determination conditions, that is, the phase difference meets a predetermined set of-5 pi/3 u-2 pi/3 u +4 pi/3, it may be determined that the local phase line of the receiver corresponds to the C phase line, and further, phase line information of the C phase line may be determined according to the phase line information of the local phase line.
The phase identification method based on multiple communication modes can apply the phase identification functional module with multiple communication modes to a meter reading area, and accurately identify the phase of the ammeter.
Since the phase recognition function is based on a plurality of communication methods, it is possible to accurately recognize the phase even when there is interference in the power line or when there is shielding or interference in the spatial electromagnetic wave.
According to yet another embodiment of the present invention, there is also provided a storage medium including a stored program, wherein the program performs any one of the methods described above when executed.
According to yet another embodiment of the present invention, there is also provided a processor for executing a program, wherein the program executes to perform any one of the methods described above.
Fig. 14 is a schematic diagram of a phase transmission apparatus according to an embodiment of the present invention, as shown in fig. 14, the apparatus may include: the first obtaining unit 140 is configured to obtain first time information of the predetermined signal, where the first time information is a time period between a sending time of the predetermined signal and a zero-crossing time of the first phase line; a second obtaining unit 142, configured to obtain second time information of the predetermined signal, where the second time information is a time period between a receiving time of the predetermined signal and a zero-crossing time of a second phase line, and the second phase line is any one of a plurality of predetermined phase lines with known phase information; a determining unit 144, configured to determine whether the second phase line corresponds to the first phase line according to the first time information and the second time information; and a determining unit 146, configured to determine whether the phase information of the second phase line is the phase information of the first phase line according to the determination result.
It should be noted that the first obtaining unit 140 in this embodiment may be configured to execute step S102 in this embodiment, the second obtaining unit 142 in this embodiment may be configured to execute step S104 in this embodiment, the determining unit 144 in this embodiment may be configured to execute step S106 in this embodiment, and the determining unit 146 in this embodiment may be configured to execute step S108 in this embodiment. The modules are the same as the corresponding steps in the realized examples and application scenarios, but are not limited to the disclosure of the above embodiments.
According to the above embodiment of the present invention, the first obtaining unit obtains the predetermined signal and the first time information of the predetermined signal in the time period between the sending time and the zero-crossing time of the first phase line, then selects any one phase line from the plurality of predetermined phase lines as the second phase line, and obtains the second time information of the predetermined signal in the time period between the receiving time and the zero-crossing time of the second phase line through the second obtaining unit, and then the determining unit determines whether the first phase line and the second phase line correspond to each other according to the first time information and the second time information, and the determining unit determines whether the phase information of the second phase line is the phase information of the first phase line according to the determination result, so as to achieve the purpose of obtaining the phase information of the first phase line, and because the predetermined signal is not limited to be sent at the zero-crossing time of the first phase line, the technical effect of flexibly transmitting the phase information is achieved, and then solved the inflexible technical problem of communication mode of current phase place information.
As an alternative embodiment, the judging unit includes: the first determining module is used for determining a time difference according to the first time information and the second time information; and the first judging module is used for judging whether the second phase line corresponds to the first phase line according to the time difference.
As an alternative embodiment, the first determining module includes: the second determining module is used for determining the phase difference according to the time difference; and the second judgment module is used for judging whether the second phase line corresponds to the first phase line or not according to the phase difference.
As an alternative embodiment, the judging unit includes: the first acquisition module is used for acquiring identification information of the first phase lines, wherein the identification information is a unique identification of each of the first phase lines, a predetermined relationship exists between two adjacent first phase lines, and a predetermined signal carries the identification information of the first phase lines; the third determining module is used for determining the identification information corresponding to the second phase according to the preset relation, the first time information and the second time information; and the fourth determining module is used for determining the first phase line corresponding to the second phase line from the plurality of first phase lines according to the identification information.
As an alternative embodiment, the third determining module includes: a fifth determining module, configured to determine predetermined difference information according to the first time information and the second time information; a sixth determining module, configured to determine a predetermined set corresponding to the predetermined difference information, where the predetermined set is a set corresponding to the identification information and preset according to a predetermined relationship; and the seventh determining module is used for determining the identification information corresponding to the second phase line according to the preset set.
Fig. 15 is a second schematic diagram of a phase transmission apparatus according to an embodiment of the present invention, and as shown in fig. 15, the apparatus may include: a third obtaining unit 150, configured to obtain first time information of the predetermined signal, where the first time information is a time period between a sending time of the predetermined signal and a zero-crossing time of the first phase line; a transmitting unit 152 for transmitting the predetermined signal and the first time information of the predetermined signal.
It should be noted that the third acquiring unit 150 in this embodiment may be configured to execute step S202 in this embodiment, and the sending unit 152 in this embodiment may be configured to execute step S204 in this embodiment. The modules are the same as the corresponding steps in the realized examples and application scenarios, but are not limited to the disclosure of the above embodiments.
The first time signal of the predetermined signal at the transmission time and the zero-crossing time of the first phase line may be determined and the predetermined signal and the first time information of the predetermined signal may be transmitted, so that the phase information of the first phase line may be acquired according to the transmitted predetermined signal and the first time information of the predetermined signal.
As an alternative embodiment, the sending unit includes: the transmitting module is used for transmitting identification information of the first phase lines, wherein the predetermined signal carries the identification information of the first phase lines, and the identification information is a unique identification of each of the plurality of first phase lines.
Fig. 16 is a schematic diagram of a phase transmission system according to an embodiment of the present invention, as shown in fig. 16, including: the transmitting terminal 161 is configured to transmit a predetermined signal and first time information of the predetermined signal, where the first time information is a time period between a transmission time of the predetermined signal and a zero-crossing time of a first phase line; the receiving terminal 163 is configured to obtain first time information and second time information of receiving a predetermined signal, where the second time information is a time period between a receiving time of the predetermined signal and a zero-crossing time of a second phase line, and the second phase line is any one of a plurality of predetermined phase lines with known phase information; and the processor 165 is configured to determine whether the second phase line corresponds to the first phase line according to the first time information and the second time information, and determine whether the phase information of the second phase line is the phase information of the predetermined phase line according to the determination result.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A method of phase transmission, comprising:
acquiring first time information of a preset signal, wherein the first time information is a time period between the sending time of the preset signal and the zero-crossing time of a first phase line;
acquiring second time information of the predetermined signal, wherein the second time information is a time period between the receiving time of the predetermined signal and the zero-crossing time of a second phase line, and the second phase line is any one of a plurality of predetermined phase lines with known phase information;
judging whether the second phase line corresponds to the first phase line or not according to the first time information and the second time information;
and determining whether the phase information of the second phase line is the phase information of the first phase line according to the judgment result.
2. The method of claim 1, wherein determining whether the second phase line corresponds to the first phase line according to the first time information and the second time information comprises:
determining a time difference according to the first time information and the second time information;
and judging whether the second phase line corresponds to the first phase line or not according to the time difference.
3. The method of claim 2, wherein determining whether the second phase line corresponds to the first phase line based on the time difference comprises:
determining a phase difference according to the time difference;
and judging whether the second phase line corresponds to the first phase line or not according to the phase difference.
4. The method of claim 1, wherein determining whether the second phase line corresponds to the first phase line according to the first time information and the second time information comprises:
acquiring identification information of the first phase lines, wherein the identification information is a unique identification of each of the first phase lines, a predetermined relationship exists between two adjacent first phase lines, and the predetermined signal carries the identification information of the first phase lines;
determining the identification information corresponding to the second phase according to the predetermined relationship, the first time information and the second time information;
and determining the first phase line corresponding to the second phase line from a plurality of first phase lines according to the identification information.
5. The method of claim 4, wherein determining the identification information corresponding to the second phase line according to the predetermined relationship, the first time information, and the second time information comprises:
determining preset difference value information according to the first time information and the second time information;
determining a preset set corresponding to the preset difference information, wherein the preset set is a set which is preset according to the preset relation and corresponds to the identification information;
and determining the identification information corresponding to the second phase line according to the preset set.
6. A phase transmission apparatus, comprising:
the device comprises a first acquisition unit, a second acquisition unit and a control unit, wherein the first acquisition unit is used for acquiring first time information of a preset signal, and the first time information is a time period between the sending time of the preset signal and the zero-crossing time of a first phase line;
a second obtaining unit, configured to obtain second time information of the predetermined signal, where the second time information is a time period between a receiving time of the predetermined signal and a zero-crossing time of a second phase line, and the second phase line is any one of a plurality of predetermined phase lines with known phase information;
the judging unit is used for judging whether the second phase line corresponds to the first phase line or not according to the first time information and the second time information;
and the determining unit is used for determining whether the phase information of the second phase line is the phase information of the first phase line according to the judgment result.
7. A phase transmission system, comprising:
the system comprises a sending end, a receiving end and a first phase line, wherein the sending end is used for sending a preset signal and first time information of the preset signal, and the first time information is a time period between the sending time of the preset signal and the zero-crossing time of a first phase line;
the receiving terminal is configured to obtain the first time information and second time information of receiving the predetermined signal, where the second time information is a time period between a receiving time of the predetermined signal and a zero crossing time of a second phase line, and the second phase line is any one of a plurality of predetermined phase lines with known phase information;
and the processor is used for judging whether the second phase line corresponds to the first phase line according to the first time information and the second time information and determining whether the phase information of the second phase line is the phase information of the preset phase line according to the judgment result.
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| CN102768311A (en) * | 2012-08-06 | 2012-11-07 | 杭州讯能科技有限公司 | Method and device for recognizing phase of power line |
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| CN105372496A (en) * | 2015-11-10 | 2016-03-02 | 华为技术有限公司 | Phase identification device and phase identification method in power supply network |
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| CN202034997U (en) * | 2011-04-12 | 2011-11-09 | 浙江华彩科技有限公司 | Interphase data communication and phase synchronism device for high voltage electric energy meters |
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| CN102768311A (en) * | 2012-08-06 | 2012-11-07 | 杭州讯能科技有限公司 | Method and device for recognizing phase of power line |
| GB2511162A (en) * | 2013-12-04 | 2014-08-27 | Energy Assets Ltd | Signal demodulation |
| CN105372496A (en) * | 2015-11-10 | 2016-03-02 | 华为技术有限公司 | Phase identification device and phase identification method in power supply network |
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